package com.wenda.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import com.wenda.entity.User;

public class LoginFilter implements Filter {

	public LoginFilter() {
	}

	public void destroy() {
	}

	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
			throws IOException, ServletException {
		// 获取session
		HttpServletRequest req = (HttpServletRequest) request;
		HttpSession session = req.getSession();
		User user = (User) session.getAttribute("user");
		if (user == null) {
			req.getRequestDispatcher("/WEB-INF/login.jsp").forward(req, response);
		}
		/*else {
			Integer role = user.getRoleId();
			if (role <= 3) {
				req.getRequestDispatcher("/WEB-INF/user/submit_user.jsp").forward(req, res);
			} else if (role <= 5) {
				req.getRequestDispatcher("/WEB-INF/user/check_user.jsp").forward(req, res);
			} else {
				req.getRequestDispatcher("/WEB-INF/admin/admin.jsp").forward(req, res);
			}
		}*/
		chain.doFilter(req, response);
	}
	public void init(FilterConfig fConfig) throws ServletException {
	}

}
